Monday, October 24, 2022

【筆記】CIECAM Input and Output Parameters

CIECAM 有 CIECAM97s 或 CIECAM02 等版本,這邊紀錄 CIECAM 架構的輸入與輸出參數。

 

架構

CIECAM 架構的輸入與輸出參數,如下圖所示:

CIECAM 輸入與輸出架構

其中 \(\small \mathsf{L_A}\) 為適應區域(Adapting Field)的絕對亮度(Absolute Luminance),\(\small \mathsf{Y_b}\) 為背景的相對亮度(Relative Luminance of Background),\(\small \mathsf{X_w, Y_w, Z_w}\) 為參考白(Reference White)的三次激值(Tristimulus)。

 

輸出參數說明

輸出參數說明可參照 Color Appearance Attribute 一文。

 

參考資料
  1. Colour Appearance, ICC DevCon 2020, Ming Ronnier Luo, 2020
  2. The CIECAM02 color appearance model, Nathan Moroney, Mark Fairchild, Robert Hunt, and Changjun Li, 2014
  3. Color Appearance Models, 3rd Edition, Mark D. Fairchild, 2013

 

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